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$391+ Cheap flights from Porto (OPO) to Las Vegas (LAS)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/13. Fares are subject to change and may not be available on all flights or dates of travel.
OPO — LAS
Oct 30 — Nov 61
Thu 10/30
Thu 11/6
1 adult, Economy
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Cheap flight deals from Porto to Las Vegas

Discover tips and strategies to find the most affordable flight options for your journey from Porto (OPO) to Las Vegas (LAS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated September 30, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$765
(Mytrip)

One-way from

$391
(Mytrip)

Popular in

July

Cheapest in

February

Average price

$830
Provider with most accurate pricing for Porto-Las Vegas Harry Reid Intl flight deals.
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Provider most trusted by Cheapflights users for Porto-Las Vegas Harry Reid Intl flights.
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From Porto to Las Vegas Harry Reid Intl
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One-way flight from Porto to Las Vegas Harry Reid Intl
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Highest demand for flights based on searches. 6% potential increase in price ($61 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($15 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Porto to Las Vegas

Cheapest flights from Porto to Las Vegas
Explore the most affordable flight options available from Porto to Las Vegas. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 30, 2025.

This American Airlines deal was found by Cheapflights users on 9/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/38:20 amOPO - LAS
2 stops18h 54mAmerican Airlines
Tue 11/186:00 amLAS - OPO
2 stops17h 40mAmerican Airlines
Deal found 9/28$768
This Air France deal was found by Cheapflights users on 9/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/34:10 pmOPO - LAS
1 stop30h 05mMultiple Airlines
Tue 11/189:51 amLAS - OPO
2 stops16h 39mMultiple Airlines
Deal found 9/29$773
This American Airlines deal was found by Cheapflights users on 9/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/58:20 amOPO - LAS
2 stops20h 53mAmerican Airlines
Wed 11/126:00 amLAS - OPO
2 stops17h 40mAmerican Airlines
Deal found 9/28$777
This KLM deal was found by Cheapflights users on 9/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/311:15 amOPO - LAS
2 stops21h 01mKLM
Tue 11/189:33 amLAS - OPO
2 stops16h 57mKLM
Deal found 9/29$778
This Delta deal was found by Cheapflights users on 9/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/36:30 amOPO - LAS
2 stops24h 50mDelta
Tue 11/187:15 amLAS - OPO
2 stops19h 15mDelta
Deal found 9/29$779
This Mytrip deal was found by Cheapflights users on 9/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/267:30 amOPO - LAS
2 stops20h 35mMultiple Airlines
Sat 11/11:20 amLAS - OPO
3 stops34h 40mMultiple Airlines
Deal found 9/28$789
This Iberia deal was found by Cheapflights users on 9/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/68:35 pmOPO - LAS
2 stops30h 19mIberia
Tue 10/213:36 pmLAS - OPO
2 stops36h 04mIberia
Deal found 9/28$814

Cheapflights Fare Finder

 
Customize your flight search to find flights from Porto to Las Vegas that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 30, 2025.
Use the filters below to find and compare flights from Porto to Las Vegas that are best for you.

Fly from

Porto

Fly to

Las Vegas

Route

Depart

Return

Price

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Wed 11/5

4:10 pm-2:15 pm

1 stop30h 05m

Las Vegas Harry Reid Intl

Wed 11/12

9:33 am-10:30 am

2 stops16h 57m

$773

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Wed 11/5

8:20 am-9:13 pm

2 stops20h 53m

Las Vegas Harry Reid Intl

Wed 11/12

6:00 am-7:40 am

2 stops17h 40m

$777

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Mon 11/3

6:30 am-11:20 pm

2 stops24h 50m

Las Vegas Harry Reid Intl

Tue 11/18

7:15 am-10:30 am

2 stops19h 15m

$779

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Mon 11/3

11:15 am-2:15 pm

1 stop35h 00m

Las Vegas Harry Reid Intl

Tue 11/18

4:05 pm-10:30 am

1 stop34h 25m

$779

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Mon 11/3

4:10 pm-2:15 pm

1 stop30h 05m

Las Vegas Harry Reid Intl

Tue 11/18

9:51 am-10:30 am

2 stops16h 39m

$781

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Sun 10/26

7:30 am-9:05 pm

2 stops20h 35m

Las Vegas Harry Reid Intl

Sat 11/1

1:20 am-7:00 pm

3 stops34h 40m

$789

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Mon 11/3

8:20 am-7:14 pm

2 stops18h 54m

Las Vegas Harry Reid Intl

Tue 11/18

6:00 am-7:40 am

2 stops17h 40m

$815

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Wed 2/18

4:40 pm-8:11 am

2 stops23h 31m

Las Vegas Harry Reid Intl

Sun 2/22

11:16 am-8:00 pm

2 stops24h 44m

$821

PortoLas Vegas

OPO - LAS

OPOLAS

Porto

Thu 11/13

6:35 am-8:38 pm

3 stops46h 03m

$391

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/29

Compare providers for flights from Porto to Las Vegas

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Porto to Las Vegas in September.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
Trip.comPrice Accuracy2 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Porto-Las Vegas flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Porto-Las Vegas flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Porto-Las Vegas flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Porto-Las Vegas flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Porto-Las Vegas flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Porto to Las Vegas

Have a flexible travel schedule? Discover the best time to fly to Las Vegas from Porto with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Related info for your journey

Find useful and relevant information for your journey from Porto to Las Vegas. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Porto to Las Vegas?

    Airlines like KLM, American Airlines, and Delta fly from Porto to Las Vegas in about 20h 53m. The time it takes to get you to your destination can typically vary by up to 9h 12m. There are 5352 mi between Porto and Las Vegas. Both multi-stop and nonstop flights can be found to your destination and back.

  • Can I find deals for flights from Porto to Las Vegas that include hotel bookings?

    Yes. In addition to deals on Porto to Las Vegas flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Porto to Las Vegas?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Porto to Las Vegas.

  • Can I find deals for business class flights from Porto to Las Vegas?

    Yes. Cheapflights offers flight deals from Porto to Las Vegas by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Porto to Las Vegas?

    Currently, August is the cheapest month in which you can book a flight from Porto to Las Vegas (average of $198). Flying from Porto to Las Vegas in March is currently the most expensive (average of $269). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Las Vegas?

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Needles
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